Data transmission system in broadband wireless access system...

H - Electricity – 04 – B

Patent

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H04B 7/26 (2006.01)

Patent

CA 2557542

Disclosed are a system for transmitting data using a band AMC in a broadband wireless orthogonal frequency multiplexing access system and a method thereof. In a broadband wireless communication system, a method for allocating data bursts to a mobile subscriber station according to channel state in a broadband wireless communication system, the method comprising the steps of transmitting allocation information to the mobile subscriber station, the allocation information including information about a sub frequency band containing the data bursts allocated to the mobile subscriber station and information about the number of band AMC subchannels allocated to the mobile subscriber station in the sub frequency band and receiving the data bursts from the mobile subscriber station according to the allocation information.

L'invention concerne un système de transmission de données faisant intervenir la technique AMC (modulation et codage adaptatifs) de bande dans un système d'accès à multiplexage par répartition orthogonale de la fréquence sans fil à bande large et un procédé associé. L'invention concerne également, dans un système de communication sans fil à bande large, un procédé d'attribution de paquets de données à une station abonné mobile en fonction d'un état de canal dans le système de communication sans fil à bande large. Ce procédé comprend les étapes consistant : à transmettre des informations d'attribution à la station abonné mobile, ces informations d'attribution comprenant des informations associées à une bande de sous-fréquence contenant les paquets de données attribués à la station abonné mobile ainsi que des informations associées au nombre de sous-canaux d'AMC de bande attribués à la station abonné mobile dans la bande de sous-fréquence ; et à recevoir les paquets de données de la station abonné mobile en fonction des informations d'attribution.

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